Portable water-heater.



A. E. REID.

PORTABLE WATER HEATER.

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Am 1!. Rm, 0]! PROVIDENCE, RHODE ISLAND", AgSIGNOR TO EUGENE F. BOWEN, 0F PROVIDENCE, RHODE ISLAND.

PORTABLE WATELHEA'IER.

Specification of Letters Patent.

Patented July 2,1918.

Application filed February 5, 1916. Serial No. 78,257.

In at! whom it may concern.-

Be it known that I, ALLAN E. Rein, a citi- United States, and resident of the city of Providence, 1n the county of Providence and State of Rhode Island, have inv'entedcertain new and useful Improvements in Portable Water-Heaters, of which the following is a specification.

This invention relates to portable water heaters, and has for'its object to provide a heater of high eflicieiicy, the same having a main coil and a plurality of auxiliary coils being connected together, the whole of each of said aukiliary coils being located in proximityto the burner, whereby the water is degree in them and main coil, to prevent water of condensationcollecting on the outer surface of the latter coil, thereby raising the heating efficiency of the system.

A further object of, the invention is to provide a burner having a plurality of,

spaced apart series of being so arran ed that the spaces between them is locate beneath a portion of said auxiliar coils so that the drip from said coils will] fall through said 5 ace to the receptacle below instead of falling onto the burner and so reduce the effectiveness of the flame jets, said jets A still further object of the invention is the provision of means whereby the operation of but a single'element controls the flow of both the water and the gas to the heater.

The invention further consists in rovid, ing means in the flow controliin e einent whereby the water inlet is opened in advan fter the as inlet, so as to positively insure the coil the heat is turned on to the apparatus' With these and other objects in view, the invention consists of certain novel features of construction, as will be more full de scribed, and articularly'pointed out 1n the appended claims:

In the accompanying drawings.

' Figure 1- is a sectional elevation of my improved heater illustrating the general arrangement of the mechanism therein.

Fig. 2- is a plan view showing a portion of the burner and the general arrangement of the different auxiliary coils and their location relative to the burner.

Fig. 3 shows a plug valve having two eing filled before ports through it whereby it is ellauusu u: control the flow of both the water and the gas} eferring to the drawin s 10 designate the casing of the heater which is preferably made of thin sheet metal and in cylindrical form, the same being provided wlth a bottom portion 11 rolled onto the lower edge thereof, thereby forming a receptacle to catch the drip from the coils. Around the lower Portion of this casing is formed a serice 0 draft holes 12. "The upper portion of this cylindrical casin' is provided with a cap member 13, which fits over the same at let and whose u per end is open as at 15 to provide a vent or the burned gases. On the inner side alon the body portion of the casing is locates an inner protecting cylinder 16 spaced apart fromthe outer cylinder to prevent theheat from discoloring the latter.

The water inlet pipe 17 enters through the casing and is curved up overthe. coils and then downward into a neck shape 18 having a header 19 atfts lower end. .A plurality of small tubes 20, see Fi' 2, lead out radially from this header an each is wound into a series of oonvolutions as at 21 substantially fillin'g the spaces between it and the inning of the next coil in the casings. Eac of these coils, it will be noted, is set in a horizontal plane, thereby bringing the whole in closeproximi'ty to the heater located below and presently described. After each of these small pipes has been wound into the desired number of coils th extend upwardly as at 38, see Fig. 1, an all are connected to another header 39 from which latter header leads the end 23 of the lar er or main coil 24. This latter coil is re erably wound into a conical shape with its axis in a vertical plane the lower convolution 25 of this main coil being connected to the discharge pipe 26, which leads out through the casing and may be of any desired length to reach over the discharge into a bowl or other suitable rece tacle.

Gas is pre erably employed as the heating agent in this device andr to use which, I have prepared a burner formed of a casing having two hollow concentric rings 27 and 28 and connected with each other throu h the passa e-way 29. This burneris loca within an su orted from thecasing below the coils and issup l'ed with airand gas through the neck 80 whichin turn 11c is connected to the double valve 31 of the plug cock type in which are provided two spaced apart openings 32 and 33 which control the water inlet 34 and the gas inlet 35, respectively. It will be noted that the water opening in this plug -10 is larger than the gas opening therein thus positively insuring that the water passageway will be open be fore the gas passageway, and closed after the gas passageway has been closed, to prevent any possibility of the heat remaining after the Water has been drawn from the coils and to also prevent the fire from being turned on before the water has filled the coils.

A handle 36 is attached to the plug 81, whereby its movement controls both the heat and water supply. At 3'? is a small pipe leading from the gas tube from the outside of the valve to the inside of the casing, thereby providing a pilot light adapted to ignite the gas automatically as soon as turnedon.

I have thus described one illustrative embodiment of my invention but I desire it to be understood that although specific terms are employed they are used in a generic and descriptive sense, and not for the purpose of limitation, the scope of the invention being set forth in the following claims.

I claim:

1. A portable water casing, a burner in said casing, a main an an auxiliary tubular coil in sand casing, said auxiliary coil being divided into a pluralit of separate groups of convolutions, eae 1 group having a horizontal axis lying 111 connected at one end to said inlet heater comprising a proximity to said burner and having one end connected to the water inlet and its opposite end to the main coil.

2. A portable heater comprising a casing, a burner in said casing, a water mlet pipe, a main and an auxiliary tubular coil in sai casing, said auxiliary coil being divided into a plurality of groups of convolutions of small tubing connected to said inlet pipe, the axes of'said cups standing in a horizontal plane and in proximity to said heater, main coil of larger tubing to which all of said auxiliary coils are connected, said main coil having a vertical axis and a discharge outlet.

3. A portable water heater comprising a casing, a water inlet pipe, a main heating coil of large tubing having a hot water dis charge at one end, an auxiliary coil comprising a plurality of roups of convolutions of smaller tubing, eac 1 having a horizontal axis and at its opposite end to said main coil, a gas heater below and in proximity to said groups hav-' inga plurality of spaced apart series of separate fire jets,- saidsmaller coils being located' over the space between said series whereby the'water of condensation may drip from said'convolutions through said spaces without affecting the flame.

In testimony whereof I aflix my signature in presence of two witnesses.

' ALLAN E. REID.

Witnesses: 1

HOWARD E. BARDOW, A. F. Maonmnr. 

